diff --git a/drivers/input/button_upper.c b/drivers/input/button_upper.c
index 4107f5a453..b6899be301 100644
--- a/drivers/input/button_upper.c
+++ b/drivers/input/button_upper.c
@@ -129,6 +129,11 @@ static int     btn_ioctl(FAR struct file *filep, int cmd,
 static int     btn_poll(FAR struct file *filep, FAR struct pollfd *fds,
                         bool setup);
 
+#ifdef CONFIG_INPUT_UINPUT
+static ssize_t btn_write(FAR struct file *filep, FAR const char *buffer,
+                         size_t buflen);
+#endif
+
 /****************************************************************************
  * Private Data
  ****************************************************************************/
@@ -138,7 +143,11 @@ static const struct file_operations btn_fops =
   btn_open,  /* open */
   btn_close, /* close */
   btn_read,  /* read */
+#ifdef CONFIG_INPUT_UINPUT
+  btn_write, /* write */
+#else
   NULL,      /* write */
+#endif
   NULL,      /* seek */
   btn_ioctl, /* ioctl */
   btn_poll   /* poll */
@@ -508,7 +517,7 @@ static ssize_t btn_read(FAR struct file *filep, FAR char *buffer,
 
   if (len < sizeof(btn_buttonset_t))
     {
-      ierr("ERROR: buffer too small: %lu\n", (unsigned long)len);
+      ierr("ERROR: buffer too small: %zu\n", len);
       return -EINVAL;
     }
 
@@ -531,6 +540,64 @@ static ssize_t btn_read(FAR struct file *filep, FAR char *buffer,
   return (ssize_t)sizeof(btn_buttonset_t);
 }
 
+/****************************************************************************
+ * Name: btn_write
+ ****************************************************************************/
+
+#ifdef CONFIG_INPUT_UINPUT
+
+static ssize_t btn_write(FAR struct file *filep, FAR const char *buffer,
+                         size_t buflen)
+{
+  FAR struct inode *inode;
+  FAR struct btn_upperhalf_s *priv;
+  FAR const struct btn_lowerhalf_s *lower;
+  int ret;
+
+  DEBUGASSERT(filep && filep->f_inode);
+  inode = filep->f_inode;
+  DEBUGASSERT(inode->i_private);
+  priv  = (FAR struct btn_upperhalf_s *)inode->i_private;
+
+  /* Make sure that the buffer is sufficiently large to hold at least one
+   * complete sample.
+   *
+   * REVISIT:  Should also check buffer alignment.
+   */
+
+  if (buflen < sizeof(btn_buttonset_t))
+    {
+      ierr("ERROR: buffer too small: %zu\n", buflen);
+      return -EINVAL;
+    }
+
+  /* Get exclusive access to the driver structure */
+
+  ret = btn_takesem(&priv->bu_exclsem);
+  if (ret < 0)
+    {
+      ierr("ERROR: btn_takesem failed: %d\n", ret);
+      return ret;
+    }
+
+  /* Write the current state of the buttons */
+
+  lower = priv->bu_lower;
+  DEBUGASSERT(lower);
+  if (lower->bl_write)
+    {
+      ret = lower->bl_write(lower, buffer, buflen);
+    }
+  else
+    {
+      ret = -ENOSYS;
+    }
+
+  btn_givesem(&priv->bu_exclsem);
+  return (ssize_t)ret;
+}
+#endif
+
 /****************************************************************************
  * Name: btn_ioctl
  ****************************************************************************/
diff --git a/drivers/input/uinput.c b/drivers/input/uinput.c
index 47dd9e08c5..f78d780b9d 100644
--- a/drivers/input/uinput.c
+++ b/drivers/input/uinput.c
@@ -26,9 +26,10 @@
 #include <errno.h>
 #include <stdio.h>
 
-#include <nuttx/kmalloc.h>
+#include <nuttx/input/buttons.h>
 #include <nuttx/input/touchscreen.h>
 #include <nuttx/input/uinput.h>
+#include <nuttx/kmalloc.h>
 
 /****************************************************************************
  * Pre-processor Definitions
@@ -36,17 +37,50 @@
 
 #define UINPUT_NAME_SIZE 32
 
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+struct uinput_button_lowerhalf_s
+{
+  struct btn_lowerhalf_s lower;
+  btn_buttonset_t        buttons;
+  btn_handler_t          handler;
+  FAR void              *arg;
+};
+
 /****************************************************************************
  * Private Function Prototypes
  ****************************************************************************/
 
+#ifdef CONFIG_INPUT_TOUCHSCREEN
 static ssize_t uinput_touch_write(FAR struct touch_lowerhalf_s *lower,
                                   FAR const char *buffer, size_t buflen);
+#endif
+
+#ifdef CONFIG_INPUT_BUTTONS
+static ssize_t uinput_button_write(FAR const struct btn_lowerhalf_s *lower,
+                                   FAR const char *buffer, size_t buflen);
+
+static btn_buttonset_t uinput_button_supported(FAR const struct
+                                               btn_lowerhalf_s *lower);
+
+static btn_buttonset_t uinput_button_buttons(FAR const struct
+                                             btn_lowerhalf_s *lower);
+
+static void uinput_button_enable(FAR const struct btn_lowerhalf_s *lower,
+                                 btn_buttonset_t press,
+                                 btn_buttonset_t release,
+                                 btn_handler_t handler,
+                                 FAR void *arg);
+#endif
 
 /****************************************************************************
  * Private Functions
  ****************************************************************************/
 
+#ifdef CONFIG_INPUT_TOUCHSCREEN
+
 /****************************************************************************
  * Name: uinput_touch_write
  ****************************************************************************/
@@ -65,6 +99,65 @@ static ssize_t uinput_touch_write(FAR struct touch_lowerhalf_s *lower,
   touch_event(lower->priv, sample);
   return buflen;
 }
+#endif /* CONFIG_INPUT_TOUCHSCREEN */
+
+#ifdef CONFIG_INPUT_BUTTONS
+
+/****************************************************************************
+ * Name: uinput_button_write
+ ****************************************************************************/
+
+static ssize_t uinput_button_write(FAR const struct btn_lowerhalf_s *lower,
+                                   FAR const char *buffer, size_t buflen)
+{
+  FAR struct uinput_button_lowerhalf_s *ubtn_lower =
+             (FAR struct uinput_button_lowerhalf_s *)lower;
+
+  if (buflen != sizeof(btn_buttonset_t))
+    {
+      return -EINVAL;
+    }
+
+  ubtn_lower->buttons = *(btn_buttonset_t *)buffer;
+  ubtn_lower->handler(&ubtn_lower->lower, ubtn_lower->arg);
+
+  return buflen;
+}
+
+/****************************************************************************
+ * Name: uinput_button_supported
+ ****************************************************************************/
+
+static btn_buttonset_t uinput_button_supported(FAR const struct
+                                               btn_lowerhalf_s *lower)
+{
+  return ~0u;
+}
+
+/****************************************************************************
+ * Name: uinput_button_buttons
+ ****************************************************************************/
+
+static btn_buttonset_t
+uinput_button_buttons(FAR const struct btn_lowerhalf_s *lower)
+{
+  FAR struct uinput_button_lowerhalf_s *ubtn_lower =
+             (FAR struct uinput_button_lowerhalf_s *)lower;
+  return ubtn_lower->buttons;
+}
+
+static void uinput_button_enable(FAR const struct btn_lowerhalf_s *lower,
+                                 btn_buttonset_t press,
+                                 btn_buttonset_t release,
+                                 btn_handler_t handler, FAR void *arg)
+{
+  FAR struct uinput_button_lowerhalf_s *ubtn_lower =
+    (FAR struct uinput_button_lowerhalf_s *)lower;
+  ubtn_lower->arg     = arg;
+  ubtn_lower->handler = handler;
+}
+
+#endif /* CONFIG_INPUT_BUTTONS */
 
 /****************************************************************************
  * Public Functions
@@ -106,3 +199,20 @@ int uinput_touch_initialize(FAR const char *name, int maxpoint, int buffnums)
 
   return touch_register(lower, devname, buffnums);
 }
+
+#ifdef CONFIG_INPUT_BUTTONS
+int uinput_button_initialize(FAR const char *name)
+{
+  char devname[UINPUT_NAME_SIZE];
+  FAR struct uinput_button_lowerhalf_s *ubtn_lower;
+
+  ubtn_lower = kmm_zalloc(sizeof(struct uinput_button_lowerhalf_s));
+  ubtn_lower->lower.bl_buttons   = uinput_button_buttons;
+  ubtn_lower->lower.bl_enable    = uinput_button_enable;
+  ubtn_lower->lower.bl_supported = uinput_button_supported;
+  ubtn_lower->lower.bl_write     = uinput_button_write;
+
+  snprintf(devname, UINPUT_NAME_SIZE, "/dev/%s", name);
+  return btn_register(devname, &ubtn_lower->lower);
+}
+#endif /* CONFIG_INPUT_BUTTONS */
diff --git a/include/nuttx/input/buttons.h b/include/nuttx/input/buttons.h
index c98c80ac72..757ac28d31 100644
--- a/include/nuttx/input/buttons.h
+++ b/include/nuttx/input/buttons.h
@@ -148,6 +148,11 @@ struct btn_lowerhalf_s
   CODE void (*bl_enable)(FAR const struct btn_lowerhalf_s *lower,
                          btn_buttonset_t press, btn_buttonset_t release,
                          btn_handler_t handler, FAR void *arg);
+
+  /* Key write callback function */
+
+  CODE ssize_t (*bl_write)(FAR const struct btn_lowerhalf_s *lower,
+                           FAR const char *buffer, size_t buflen);
 };
 
 /****************************************************************************
diff --git a/include/nuttx/input/uinput.h b/include/nuttx/input/uinput.h
index 46e777212e..f55afba943 100644
--- a/include/nuttx/input/uinput.h
+++ b/include/nuttx/input/uinput.h
@@ -49,4 +49,21 @@
 int uinput_touch_initialize(FAR const char *name, int maxpoint,
                             int buffnums);
 
+/****************************************************************************
+ * Name: uinput_button_initialize
+ *
+ * Description:
+ *   Initialized the uinput button device
+ *
+ * Input Parameters:
+ *   name:      Button devices name
+ *
+ * Returned Value:
+ *   Zero is returned on success. Otherwise, a negated errno value is
+ *   returned to indicate the nature of the failure.
+ *
+ ****************************************************************************/
+
+int uinput_button_initialize(FAR const char *name);
+
 #endif /* __INCLUDE_NUTTX_INPUT_UINPUT_H */